X-ray based automatic exposure triggering device, system and method thereof

Abstract

The invention provides an X-ray based automatic exposure triggering device, a system and a method thereof. The device includes at least two automatic exposure detecting units and a processor unit, wherein the automatic exposure detecting unit is used for converting an optical signal into an electrical signal and comparing the electrical signal with a first preset threshold and a second preset threshold. When the electrical signals of the at least two automatic exposure detecting units are higher than the first threshold, a processor issues an emptying-stop instruction; during the window time,when any of the electrical signals of the automatic exposure detecting unit is higher than the second threshold, the processor issues an image acquisition instruction. According to the X-ray based automatic exposure triggering device, the system and the method, through at least two automatic exposure detecting units and the processor unit, combining a comparison algorithm to make a comparison of the electrical signal with the preset first threshold and the preset second threshold, whether the X-ray image is acquired or not can be determined, and the problem of false triggering and non-triggering of a detector caused by the single automatic exposure detecting unit is avoided.

Description

technical field [0001] The invention belongs to the field of X-ray medical first aid, in particular to an X-ray-based automatic exposure trigger device, system and method. Background technique [0002] At present, due to the digital radiography (Digital Radiography, referred to as DR), which is a new technology of X-ray photography developed in the 1990s, with its faster imaging speed, more convenient operation, higher imaging resolution, etc. With significant advantages, it has become the leading direction of digital X-ray photography technology, and has been recognized by clinical institutions and imaging experts all over the world. The technical core of DR is the flat panel detector, which is a sophisticated and expensive device that plays a decisive role in the imaging quality. The flat panel detector is the X-ray receiving device in the DR system. In the DR system, the high-voltage generator and the ball tube control the output of X-rays. The X-rays pass through the o...

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Problems solved by technology

[0008] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an X-ray-based automatic exposure trigger device, system and method, which are used to solve the problems caused by the existence of a single automatic exposure detection unit in the prior art that cause the detector to False triggering and non-triggering issues

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